Mountain resort image
– Lat/Long: 48.71° N 121.99° W

South Twin Sister Weather Forecast

Cascade Range · United States
Issued: 4 am Fri 16 Oct Local Time
Updates in:
hr min s
Update imminent 

Days 1–3 Weather Summary

Light rain (total 10mm), mostly falling on Sat morning. Warm (max 22°C on Fri afternoon, min 6°C on Sat night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Very mild (max 15°C on Wed afternoon, min 6°C on Tue morning). Wind will be generally light.

Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
clear
clear
rain showers
rain showers
rain showers
clear
part cloud
part cloud
cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
rain shwrs
rain shwrs
rain shwrs
clear
some clouds
some clouds
cloudy
some clouds
cloudy
some clouds
clear
clear
clear
clear
clear
some clouds
Cloud base (m)
8650
2700
850
1750
5900
3000
4000
5300
3300
8650
8450
km/h
10
SSE
10
S
15
S
10
SW
5
SW
5
NNE
0
NE
0
NW
5
ESE
0
SW
5
SW
0
ESE
5
WNW
5
NW
5
E
5
S
5
SW
0
ESE
Weather map
Weather map
Weather map
Weather map
Weather map
Weather map
Snowflake cm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
 mm
—
—
3
6
0.2
—
—
—
—
—
—
—
—
—
—
—
—
—
max °C
20
22
16
9
10
7
10
12
10
11
11
8
10
12
9
14
15
12
min °C
16
20
10
9
9
6
6
11
9
9
10
7
6
11
9
9
14
10
 chill °C
16
20
9
7
8
6
6
11
9
9
10
7
6
11
9
9
14
10
Freezing level m
3800
3600
2750
1700
1750
1850
2350
2600
2500
2300
2150
2050
2050
2350
2750
2900
2900
2700
Sea lvl1000m2000m3000m4000m5000m
11105-3-2-212311-1-11355416159122246543247898182113910781210101188129121511
Sunrise
7:28
—
—
7:30
—
—
7:31
—
—
7:33
—
—
7:35
—
—
7:35
—
—
Sunset
—
6:16
—
—
6:15
—
—
6:13
—
—
6:10
—
—
6:08
—
—
6:07
—

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Light rain (total 10mm), mostly falling on Sat morning. Warm (max 22°C on Fri afternoon, min 6°C on Sat night). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Mostly dry. Very mild (max 15°C on Wed afternoon, min 6°C on Tue morning). Wind will be generally light.

This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.

Live conditions reported by 10 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
34 km WSW
100m alt.
41 minutes ago
5°C
Dry
0
Calm
(0 kph at 0).
0
SHIP14301
38 km WSW
15m alt.
1 hour ago
5
Calm
(6 kph at 120).
- km
SHIP13888
38 km WSW
3m alt.
1 hour ago
9°C
5
Calm
(5 kph at 120).
SHIP5715
39 km W
3m alt.
2 hours ago
7°C
2
Calm
(2 kph at 30).
SHIP4919
39 km W
3m alt.
3 hours ago
7°C
2
Calm
(2 kph at 30).
SHIP9692
39 km W
15m alt.
4 hours ago
2
Calm
(2 kph at 30).
- km
SHIP6799
39 km W
15m alt.
1 hour ago
2
Calm
(2 kph at 40).
- km
SHIP9487
39 km W
3m alt.
2 hours ago
7°C
2
Calm
(2 kph at 20).
SHIP15874
39 km W
15m alt.
5 hours ago
2
Calm
(2 kph at 20).
- km
SHIP8841
39 km W
3m alt.
3 hours ago
7°C
2
Calm
(2 kph at 30).

* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.